Computer Quantitation Of Coronary Angiograms

Deborah C. Ledbetter; Robert H. Selzer; Richard M. Gordon; David H. Blankenhorn; Miguel E. Sanmarco

doi:10.1117/12.956976

19 June 1979 Computer Quantitation Of Coronary Angiograms

Deborah C. Ledbetter, Robert H. Selzer, Richard M. Gordon, David H. Blankenhorn, Miguel E. Sanmarco

Proceedings Volume 0167, Noninvasive Cardiovascular Measurements; (1979) https://doi.org/10.1117/12.956976
Event: Noninvasive Cardiovascular Measurements, 1978, Palo Alto, United States

Abstract

A computer technique is being developed at the Jet Propulsion Laboratory to automate the measurement of coronary stenosis. A Vanguard 35mm film transport is optically coupled to a Spatial Data System vidicon/digitizer which in turn is con-trolled by a DEC PDP 11/55 computer. Programs have been developed to track the edges of the arterial shadow, to locate normal and atherosclerotic vessel sections and to measure percent stenosis. Multiple frame analysis techniques are being investigated that involve on the one hand, averaging stenosis measurements from adjacent frames, and on the other hand, averaging adjacent frame images directly and then measuring stenosis from the averaged image. For the latter case, geometric transformations are used to force registration of vessel images whose spatial ori-entation changes.

Citation Download Citation

Deborah C. Ledbetter, Robert H. Selzer, Richard M. Gordon, David H. Blankenhorn, and Miguel E. Sanmarco "Computer Quantitation Of Coronary Angiograms", Proc. SPIE 0167, Noninvasive Cardiovascular Measurements, (19 June 1979); https://doi.org/10.1117/12.956976

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